Improvement in wheelwrights  machines



M. C. BUFFINGTON. Whe'elwrights" Machines.

No.l49,985, ParentedApri121,1a74.

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UNITED STATES 'PATENT OFFICE.

MOSES O. BUFFINGTON, OF BURLINGTON, IOWA, ASSIGNOR OF ONE-HALF HIS RIGHTTO JAMES M. FORNEY, OF SAME PLACE.

IMPROVEMENT IN WHEELWRIGHTS NIACHINES.

Specification forming part of Letters Patent No. 149,986, dated April2l, 1874; application filed February 9, 1874.

Cnsn B.

To all whom fit may concern:

Be it known that I, Mosns C. BUFFING- TON, of Burlington, county of DesMoines and State of Iowa, have invented certain new and usefulImprovements in W heelwrights7 Machines, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawing forming a part of this specification, in which-.Figure l is a top plan or view of my invention. Fig. 2 is a sideelevation of Fig. 1, seen from the rear side. Fig. 3 is a vert-icalsectional view of Fig. l on the line x m, seen from the front side andFig. 4 is a vertical sectional view of Fig. 1 on the line y y, seen fromthe left-hand side.

The nat-ure of my invention relates to improvements in wheelwrightsmachines, for sawing the ends of spokes of uniform length, and formingthe round tenons thereon, and the invention consists in the arrangementof a table with a shaft driven by power, and carrying a combined hollowauger and (lished saw, said table being provided with suitable devicesfor holding and adjusting the wheel to be operated upon to theoperations of the s'aw and of the hollow auger, all as hereinaf terfully described.

Referring to the parts by letters, letter A represents any combinedcircular saw and a hollow auger or tool for cutting round tenons,supported or carried on a shaft, A', the end only of which is shown,together with the adjacent parts of aframe, A, for supporting the same,and the devices constitutin gmy invention, also. B represents a framewith side pieces B B', which slide in grooves formed by the ledges O Con the side of the main frame A, and C is an adjustingscrew, by means ofwhich the height of the frame B may be adjusted on the frame A. D D arehorizontal arms of the frame B,connected by an arm,- D', and having' ontheir upper surfaces slides or ways d d, at right angles from theframeA. E is a rectangular frame, which is notched onto the slides d al.e e are projections from the lower side of the vfralne E, a-nd have eyesor holes, through which spring-retainers e e pass, the one' end of whichrests against one side of the frame E, and their other ends againsttheopposite side of the frame B, which conta-ins cavities for theirreception. The bars e c are encircled by spiral springs e e between theeye-plates e e and the side of the frame B adjacent to the main frame A.G is a barsecured to the upper Yside of the frame E, with one endprojecting ing-lever, pivoted at one end to 011e side of the block J. Lis a supporting-rod, bent as shown at Fig. 3, and having one end fixedin the stay-bar 1'., and its other end to the block J. m is a pinprojecting from the side ofthe frame E through a hole in the side of theframe A. a is an adjustable stop, threaded where it passes through theframe A. P is a stoppin projecting downward from the frame E. Ris atreadle, from which a strap, 1, passes` upward and. through a suitablehole in the frame A, and connects with the frame E.

The operation of my invention is as follows: The frame B being adjustedto theproper height, the table E is placed thereon, with the pin mprojecting through the side frame of A, to stay and aid in holding thetable E. The wheel to be operated upon may now be mounted in the chuckh', as shown in the drawings. The set-screw h being loose, the collar Hmay be adjusted on the bar G to suit the length of spoke required, andiiXed in position by the set-screw h, and the screw h be utilized toadjust the height of the wheel at the hub to suit the different dishing,dsc., when, by means of the nut h', the screw h may be locked inposition. The stop a may now be adjusted to limit the sliding movementof the table E toward the auger and saw A, the movement in the oppositeor return direction being linnited by the stop P. The wheel may now beturned so as to bring one of the spokes to the action of the saw, asshown at Fig. l, and when sawed o the wheel may be turned a littlefarther, until the same spoke is opposite to the opening in the hollowau ger, when the calnlever K may be turned down, as shown at Fig. 3, tosecure it firmly, while, by means of the treadle R and strap i, thetable E may be moved, and the spoke brought to the action of the augerfor cutting the round tenon thereon. Upon releasing the treadle R thesprings c e will return the table E to its normal position, stopped bythe pin P striking the rear side of the frame B, and so 011consecutively the spokes may be brought to the action of the saw andauger, the bar L (see Fig. 2) `acting as a support while the saw isoperating upon the spoke.

It will be seen that by lifting the outer end ot'` the frame E it may beremoved from the frame B.

The construction and relative arrangement of the saw and hollowr auger A`are fully described in another application for Letters Pat` ent made byme, and filed concurrently with this. l

I am aware that machines having moving tools and stationary tables havebefore been used for like purposes; but I am not aware that anyT machineoperating like mine has before been known or used.

I claiml. The frame E and springs e e, supported as herein stated, andarranged to operate with the au ger and saw A, clutch h', and clamp K,substantially as described, and for the purpose specified.

2. The clutch hf, adjustably mounted on the slotted bar G, as `setforth, and arranged to operate with the reciprocating table E,stationary table B, and auger and saw A, sub-` stantially as described,and for the purpose specified. t

3. The stops n and P, arranged to operate with the tables ,E and B, andauger and saw A, substantially as described, and for the pur posespecified.

`MOSES C. BUFFINGTON.

Witnesses:

T. J. TRULooK, J AMES M. FoRNEY.

